Producer gas from biomass gasification contains impurities like tars, particles, alkali salts, and sulfur/nitrogen compounds. As a result, a number of process steps are required to condition the producer gas before utilization as a syngas and further upgrading to final chemicals and fuels. Here, we study the concept of using molten carbonate electrolysis cells (MCEC) both to clean and to condition the composition of a raw syngas stream, from biomass gasification, for further upgrading into synthetic natural gas (SNG). A mathematical MCEC model is used to analyze the impact of operational parameters, such as current density, pressure and temperature, on the quality and amount of syngas produced. Internal rate of return (IRR) is evaluated as an economic indicator of the processes considered. Results indicate that, depending on process configuration, the production of SNG can be boosted by approximately 50–60% without the need of an additional carbon source, i.e., for the same biomass input as in standalone operation of the GoBiGas plant.
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January 2019
Research-Article
Integration of an Electrolysis Unit for Producer Gas Conditioning in a Bio-Synthetic Natural Gas Plant
Sennai Mesfun,
Sennai Mesfun
Ecosystems Services and Management Program,
International Institute for Applied Systems
Analysis (IIASA),
Schlossplatz 1,
Laxenburg A-2361, Austria
e-mail: mesfun@iiasa.ac.at
International Institute for Applied Systems
Analysis (IIASA),
Schlossplatz 1,
Laxenburg A-2361, Austria
e-mail: mesfun@iiasa.ac.at
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Joakim Lundgren,
Joakim Lundgren
Energy Engineering, Division of Energy Science,
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: joakim.lundgren@ltu.se
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: joakim.lundgren@ltu.se
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Andrea Toffolo,
Andrea Toffolo
Energy Engineering, Division of Energy Science,
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: andrea.toffolo@ltu.se
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: andrea.toffolo@ltu.se
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Göran Lindbergh,
Göran Lindbergh
School of Chemical Science and Engineering,
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: gnli@kth.se
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: gnli@kth.se
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Carina Lagergren,
Carina Lagergren
School of Chemical Science and Engineering,
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: carinal@kth.se
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: carinal@kth.se
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Klas Engvall
Klas Engvall
School of Chemical Science and Engineering,
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: kengvall@kth.se
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: kengvall@kth.se
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Sennai Mesfun
Ecosystems Services and Management Program,
International Institute for Applied Systems
Analysis (IIASA),
Schlossplatz 1,
Laxenburg A-2361, Austria
e-mail: mesfun@iiasa.ac.at
International Institute for Applied Systems
Analysis (IIASA),
Schlossplatz 1,
Laxenburg A-2361, Austria
e-mail: mesfun@iiasa.ac.at
Joakim Lundgren
Energy Engineering, Division of Energy Science,
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: joakim.lundgren@ltu.se
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: joakim.lundgren@ltu.se
Andrea Toffolo
Energy Engineering, Division of Energy Science,
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: andrea.toffolo@ltu.se
Luleå University of Technology,
Luleå SE-971 87, Sweden
e-mail: andrea.toffolo@ltu.se
Göran Lindbergh
School of Chemical Science and Engineering,
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: gnli@kth.se
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: gnli@kth.se
Carina Lagergren
School of Chemical Science and Engineering,
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: carinal@kth.se
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: carinal@kth.se
Klas Engvall
School of Chemical Science and Engineering,
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: kengvall@kth.se
KTH,
Teknikringen 42,
Stockholm SE-100 44, Sweden
e-mail: kengvall@kth.se
1Corresponding author.
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received December 28, 2017; final manuscript received July 18, 2018; published online August 9, 2018. Assoc. Editor: Asfaw Beyene.
J. Energy Resour. Technol. Jan 2019, 141(1): 012002 (12 pages)
Published Online: August 9, 2018
Article history
Received:
December 28, 2017
Revised:
July 18, 2018
Citation
Mesfun, S., Lundgren, J., Toffolo, A., Lindbergh, G., Lagergren, C., and Engvall, K. (August 9, 2018). "Integration of an Electrolysis Unit for Producer Gas Conditioning in a Bio-Synthetic Natural Gas Plant." ASME. J. Energy Resour. Technol. January 2019; 141(1): 012002. https://doi.org/10.1115/1.4040942
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